Grint has also shared his feelings about the kiss, saying that locking lips with Emma was ‘unnatural’.

In an interview with Attitude magazine, the actor said: ‘It took a while to get into it and put our friendship aside, it’s quite full-on, a proper snog. We laughed a lot and it took us a while to concentrate.’

Emma has previously told OK! magazine that her on-screen snog with co-star Daniel Radcliffe ‘wasn’t so bad’, although she said smooching with Rupert was ‘the weirdest’.